Types Of Polymerization Reactions
Chapter Name : Polymers |
Sub Topic Code : 102_12_15_03_02 |
Topic Name : Types Of Polymerization Reactions |
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Sub Topic Name : Condensation Polymerization Or Step Growth Polymerization |
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Introduction
1.This type of polymerization generally involves a repetitive condensation reaction between two bi-functional monomers. 2.These poly-condensation reactions may result in the loss of some simple molecules as water, alcohol, etc. 3.The formation of terylene or dacron by the interaction of ethylene glycol and terephthalic acid is an example of step growth polymerization. 4.Nylon 6 is obtained by heating caprolactum with water at a high temperature. 5.Nylon 6 is used for the manufacture of tire cords, fabrics and ropes. 6.Polyesters are the poly-condensation products of dicarboxylic acids and diols. Ex: Dacron. 7.It is manufactured by Heating a mixture of ethylene glycol and terephthalic acid Temperature = 420 to 460 K Catalyst - zinc acetate antimony trioxide.
Pre-Requisites:
Elements, compounds, molecules
Activity:
1.Polymers are used to make: 2.Plastic buckets, Cups and saucers, Children’s toys, Packaging bags, Synthetic clothing materials, Automobile tires, Electrical insulating materials and machine parts.
Real Life Question:
How is plastic made?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| polymerization. | The process of formation of polymers from respective monomers |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| plastic | Plastic is a polymer |
Real life uses :
1.Polymers are used to make: 2.Plastic buckets, Cups and saucers, Children’s toys, Packaging bags, Synthetic clothing materials, Automobile tires, Electrical insulating materials and machine parts.
Places to visit :
Departmental store
Practical examples around us
| Examples | Explainations |
|---|---|
| Plastic toys, buckets | All are made of polymers |
What you learn in Theory:
1.This type of polymerization generally involves a repetitive condensation reaction between two bi-functional monomers. 2.These poly-condensation reactions may result in the loss of some simple molecules as water, alcohol, etc. 3.The formation of terylene or dacron by the interaction of ethylene glycol and terephthalic acid is an example of step growth polymerization. 4.Nylon 6 is obtained by heating caprolactum with water at a high temperature. 5.Nylon 6 is used for the manufacture of tire cords, fabrics and ropes. 6.Polyesters are the poly-condensation products of dicarboxylic acids and diols. Ex: Dacron. 7.It is manufactured by Heating a mixture of ethylene glycol and terephthalic acid Temperature = 420 to 460 K Catalyst - zinc acetate antimony trioxide.
What you learn in Practice:
Polymers have a variety of uses